Title:
ROTATIONAL DRIVING DEVICE FOR DISK
Document Type and Number:
Japanese Patent JP2888098
Kind Code:
B2
Abstract:
PURPOSE: To obtain a rotational driving device for a disk, cost of which is reduced by decreasing the number of parts, etc., and reliability of which is improved and leakage flux of which is inhibited.
CONSTITUTION: A hub magnet is molded integrally with a rotor yoke 5 with a plastic magnet, and a rod-shaped engaging section 13 is formed through the hole for locking of the rotor yoke 5. The base section of a lever 9 with a driving pin 11 is supported rotatably to the rotor yoke 5 by a shaft 10. The annular section of a spring 14 is fitted to the shaft 10, one side of the spring 14 is engaged with an engaging section 13, the other side of the spring 14 is interlinked with the lever 9, and the driving pin 11 is energized in the direction of an outer circumference. The hub magnet is molded integrally with the rotor yoke 5, thus simultaneously forming the engaging section 13 with the spring 14.
Inventors:
NISHIZAWA HIROSHI
Application Number:
JP18253393A
Publication Date:
May 10, 1999
Filing Date:
July 23, 1993
Export Citation:
Assignee:
MATSUSHITA DENKI SANGYO KK
International Classes:
G11B19/20; G11B17/028; (IPC1-7): G11B17/028
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)